Leeds are set to run the rule over midfielder Michael Stewart as he plays in a behind-closed-doors match on Monday.
The 29-year-old Scotland international is one of two trialists looking to impress the Whites, who are gunning for promotion from the Championship this season.
Stewart came through the ranks at Rangers before moving on to Manchester United in 1998 and has since had spells in Edinburgh with both Hibernian and Hearts.
As revealed by skysports.com at the weekend, Stewart could be poised for a switch to Elland Road after terminating his contact with Turkish club Genclerbirligi in January following a series of late and part payments of his salary, despite other interest from Blackpool.
Boss Simon Grayson told Leeds' official website: "We've got a couple of lads up here on trial who will play on Monday.
"As ever we'll have a look at them over the next few days and see how things go."
Meanwhile, Grayson is waiting to find out the extent of defender Paul Connolly's hamstring injury.
Right-back Connolly, who sustained the problem in Saturday's win over Coventry, was withdrawn in the 83rd minute and could be an early doubt for the league game at Bristol City.
Grayson added: "'Conns' could've come off a bit earlier. He tweaked his hamstring and we'll assess him over the next few days and see how he is."